209 citations · 794 across the 17 of their papers we have counts for
17 papers
Asperity Shape and Gradient Elasticity in Flexoelectric/Triboelectric Contacts
Karl P. Olson, Laurence D. Marks
The underlying mechanisms responsible for triboelectricity have yet to be completely understood. We have previously proposed a model which explains charge transfer in non-metals vi…
Band bending and ratcheting explain triboelectricity in a flexoelectric contact diode
Karl P. Olson, Christopher A. Mizzi, Laurence D. Marks
Triboelectricity was recognized millennia ago, but the fundamental mechanism of charge transfer is still not understood. We have recently proposed a model where flexoelectric band…
Twin Boundary Mediated Flexoelectricity in LaAlO
Christopher A. Mizzi, Binghao Guo, Laurence D. Marks
Flexoelectricity has garnered much attention owing to its ability to bring electromechanical functionality to non-piezoelectric materials and its nanoscale significance. In order t…
Does Flexoelectricity Drive Triboelectricity?
Christopher A. Mizzi, Alex Y. W. Lin, Laurence D. Marks
The triboelectric effect, charge transfer during sliding, is well established but the thermodynamic driver is not well understood. We hypothesize here that flexoelectric potential…
Non-equilibrium Solute Capture in Passivating Oxide Films
Xiao-xiang Yu, Ahmet Gulec, Quentin Sherman +5
If all humans vanished tomorrow, almost every metal structure would collapse within a century or less, the metal converting to an oxide. In applications ranging from the mature tec…
Electronic Structure of Lanthanide Scandates
Christopher A. Mizzi, Pratik Koirala, Laurence D. Marks
X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy and density functional theory calculations were used to study the electronic structure of three lanthanide…
Direct Observation of Large Flexoelectric Bending at the Nanoscale in Lanthanide Scandates
Pratik Koirala, Christopher Mizzi, Laurence D. Marks
Large bending of materials can occur at the nanoscale in response to an electric polarization, what is called the flexoelectric effect, but to date this has not been observed direc…
Three-dimensional coordinates of individual atoms in materials revealed by electron tomography
Rui Xu, Chien-Chun Chen, Li Wu +11
Crystallography, the primary method for determining the three-dimensional (3D) atomic positions in crystals, has been fundamental to the development of many fields of science. Howe…
Reply to "Local Filtering Fundamentally Against Wide Spectrum"
Jianwei Miao, M. C. Scott, Chien-Chun Chen +6
After carefully studying the comment by Wang et al. (arXiv:1408.6420), we found it includes several mistakes and unjustified statements and Wang et al. lack very basic knowledge of…
Optimized conditions for direct imaging of bonding charge density in electron microscopy
James Ciston, Sarah J. Haigh, Judy S. Kim +2
We report on the observability of valence bonding effects in aberration-corrected high resolution electron microscopy (HREM) images along the [010] projection of the mineral Forste…
Structure and morphology of hydroxylated nickel oxide (111) surfaces
J. Ciston, A. Subramanian, D. M. Kienzle +1
We report an experimental and theoretical analysis of the sqrt(3)x sqrt(3)-R30 and 2x2 reconstructions on the NiO (111) surface combining transmission electron microscopy, x-ray ph…
Characteristics of Precession Electron Diffraction Intensities from Dynamical Simulations
W. Sinkler, L. D. Marks
Precession Electron Diffraction (PED) offers a number of advantages for crystal structure analysis and solving unknown structures using electron diffraction. The current article us…
The Small Unit Cell Reconstructions of SrTiO3 (111)
Laurence D. Marks, Ann N. Chiaramonti, Fabien Tran +1
We analyze the basic structural units of simple reconstructions of the (111) surface of SrTiO3 using density functional calculations. The prime focus is to answer three questions:…
Charge Density Refinement of the Si (111) 7x7 Surface
J. Ciston, A. Subramanian, I. K. Robinson +1
We report an experimental refinement of the local charge density at the Si (111) 7x7 surface utilizing a combination of x-ray and high energy electron diffraction. By perturbing ab…
Hydroxylated MgO (111) reconstructions: why the case for clean surfaces does not hold water
J. Ciston, A. Subramanian, L. D. Marks
We report an experimental and theoretical analysis of the root(3)xroot(3)-R30 and 2x2 reconstructions on the MgO (111) surface combining transmission electron microscopy, x-ray pho…
Robust Mixing for Ab-Initio Quantum Mechanical Calculations
L. D. Marks, D. R. Luke
We study the general problem of mixing for ab-initio quantum-mechanical problems. Guided by general mathematical principles and the underlying physics, we propose a multisecant for…
A Surface Reconstruction with a Fractional Hole: LaAlO (001)
C. H. Lanier, J. M. Rondinelli, B. Deng +3
The structure of the reconstruction of LaAlO (001) has been determined using transmission electron diffraction combined with direct method…